"The enemies will have machine pistols and rocket launchers as well as swords to use against you. The bullets and rockets seem magical in the sense that they never hurt the bad guys, even if they are standing right next to you when a rocket hits you dead on. This would seem almost laughable except for the fact that you may be lying dead while the bad guys are still standing around unscathed."

Lol, what a silly complain. If the bad guys die easily by bullets / rockets than it's not Hayabusha job to kill them. Just call the police, call it a day, and we've got another FPS :P

The only differences I noticed, is that the game is harder, has more customization / upgrading, and has decapitations and more gore. And yeah, the game is also longer, you get to play with Ayane, Kasumi, Momiji, and you have more challenges. But at it's core it is the same game as NG3